I knew I needed to put some more plates on the back, but those went on with rivnuts and I could do it after the fact. That's what I thought. Turns out I was wrong. First of all, one of the rivets I put in actually needed to be a rivnut, so that rivet needed to get drilled out. Then, the holes for the top row of rivnuts was in the wrong place, so I needed to drill those (that was a Sling problem, not mine, but I had plenty of my own on this!!!). That top row was NOT symmetrical - look at August 16 for more on that.

Finally, I needed to disassemble one of the backs, at least enough to get inside it, and put the nutplate in. In the process of doing that, I proved once again that a sharp drill bit is night-and-day different than a dull one. In trying to drill out the rivets to get inside, using a dull drill bit, I mangled the holes. So, that rear seatback now has some 3.2mm rivets, per design, and some 4.0mm rivets, because the holes were no longer 3.2mm or even round. Sigh. I didn't take pictures of that, but I should have. I pulled off the curved part of the outer edge of the seat back and ended up riveting it back on.

I did put the nutplate in, and opening the side did give me the opportunity to take all the rivet shards out, and when I did the other seat back I had a sharp drill bit, so that was all good. And, it was a good example of why I should dry fit *everything* before starting to pull rivets, not just "close enough." So, it was a happy ending. Well, mostly. Take a look at the August 16 entry...